Connect Remote Receiver; Check System Operation - MHSC DFX24C Installation & Operating Instructions Manual

Dfx/dbx series vent-free fireplace systems
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DFX & DBX Series Vent Free Fireplaces

CONNECT REMOTE RECEIVER

THESE INSTRUCTIONS SUPERCEDE THE SECTION
ENTITLED "HEARTH MOUNT" IN THE M
HAND-HELD REMOTE INSTRUCTIONS SUPPLIED
WITH THE REMOTE.
Figure 16
1. Remove bottom louvre door.
2. Connect the remote connectors located in the unit.
3. Stick Velcro• pads with self-adhesive backing to bottom
of remote receiver and to floor of compartment behind
access panel.
4. Attach remote receiver to firebox with Velcro• pads.
Control switch must face forward.
NOTE: Do not place remote in combustion chamber.

CHECk SYSTEM OPERATION

The millivolt system and individual components may be checked with a millivolt meter having
a 0-1000 mV range. Conduct each check shown in chart below by connection meter test leads
to terminals as indicated.
A. COMPLETE MILLIVOLT SYSTEM CHECk
("A" Reading - Thermostat contacts CLOSED - Control knob "ON" - Main burner
should turn ON)
a. If the reading is more than 100 millivolts and the automatic valve still does not come on,
replace the control.
b. If the closed circuit reading ("A" reading) is less than 100 millivolts, determine cause for
low reading, proceed to Section B below.
B. Thermopile Output Reading Check
("B" Reading - Thermostat contacts OPEN - Main burner OFF)
1. Check gas pressure to the unit. If gas pressure is within minimum and maximum on data
plate, then check pilot voltage, 325 millivolts minimum. If the minimum millivolt reading is
not obtainable, replace pilot.
Check
To
Test
Test
A
Complete
System
B
Thermopile
16
ILLIvOLT
Connect Meter
Switch or
Leads to
Thermostat
Terminals
Contacts
2 & 3
Closed
1 & 2
Open
ELECTRICAL INSTALLATION
Velcro•
Remote
Receiver
Velcro•
Figure 16 -
Install Remote Receiver
Meter
Reading
Should Be
Closed
Open
FP2512
FP2512
install remote rcvr
33D4047

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